So...you designed it to destroy lenses and it may cause eye damage but that's not what you designed it for, so that makes it legal to use? Am I the only one who sees a problem with that?Perhaps the most controversial issue is the potential to cause eye damage to the enemy: Femtosecond lasers are the same ones used for eye surgery. "Eye hazards are a risk when using any laser," says Law. "We continue to research the human-effects issues surrounding this type of laser."
Even if it could cause eye damage, such a laser would not be outlawed by an international weapons treaty, which "only bans lasers intentionally designed to blind," says Neil Davison of the Bradford Disarmament Research Center. "A weapon designed to damage lenses rather than eyes would not be covered."